llvm-svn: 45594

llvm-svn: 45576

llvm-svn: 45575

llvm-svn: 45574

llvm-svn: 45573

llvm-svn: 45572

llvm-svn: 45571

It is missing validity checks, so it is known broken.  However, it is powerful enough
to compile this contrived code:

void test1(int C, double A, double B, double *P) {
  double Tmp = A*A+B*B;
  *P = C ? Tmp : A;
}

into:

_test1:
	movsd	8(%esp), %xmm0
	cmpl	$0, 4(%esp)
	je	LBB1_2	# entry
LBB1_1:	# entry
	movsd	16(%esp), %xmm1
	mulsd	%xmm1, %xmm1
	mulsd	%xmm0, %xmm0
	addsd	%xmm1, %xmm0
LBB1_2:	# entry
	movl	24(%esp), %eax
	movsd	%xmm0, (%eax)
	ret

instead of:

_test1:
	movsd	16(%esp), %xmm0
	mulsd	%xmm0, %xmm0
	movsd	8(%esp), %xmm1
	movapd	%xmm1, %xmm2
	mulsd	%xmm2, %xmm2
	addsd	%xmm0, %xmm2
	cmpl	$0, 4(%esp)
	je	LBB1_2	# entry
LBB1_1:	# entry
	movapd	%xmm2, %xmm1
LBB1_2:	# entry
	movl	24(%esp), %eax
	movsd	%xmm1, (%eax)
	ret

woo.

llvm-svn: 45570

llvm-svn: 45569

llvm-svn: 45568

llvm-svn: 45562

llvm-svn: 45553

llvm-svn: 45536

could theoretically introduce a trap, but is also a performance issue.
This speeds up ptrdist/ks by 8%.

llvm-svn: 45533

"libc_nonshared.a". Patch by Edwin Török!

llvm-svn: 45532

llvm-svn: 45529

llvm-svn: 45528

for non-function GV relocations that require function address stubs (e.g. Mac OS X in non-static mode).

llvm-svn: 45527

refcount on these correctly, and can end up referring to deleted 
attributes.  This fixes PR1881.

llvm-svn: 45525

get a profile.

llvm-svn: 45524

llvm-svn: 45519

own file.  Don't #include ParameterAttributes.h into any major
public header files: just move methods out of line as appropriate.

llvm-svn: 45517

llvm-svn: 45516

llvm-svn: 45515

llvm-svn: 45512

llvm-svn: 45506

llvm-svn: 45499

check that register isn't 0 before going further.

llvm-svn: 45498

llvm-svn: 45496

llvm-svn: 45494

llvm-svn: 45493

instruction. Also, use "splice" to move the new instruction instead of
remove/insert (where it was leaking memory anyway).

llvm-svn: 45492

llvm-svn: 45485

llvm-svn: 45484

Make MachineRegisterInfo::getVRegDef more efficient by aiming the keep the def of the vreg at the start of the list, so the list doesn't need to be traversed.

llvm-svn: 45483

it now returns the machineinstr of the use.  To get the operand, use I.getOperand().

Add a new MachineRegisterInfo::replaceRegWith, which is basically like
Value::replaceAllUsesWith.

llvm-svn: 45482

Patch by Bryan O'Sullivan!

llvm-svn: 45481

instruction that defines the specified vreg.  Crazy.

llvm-svn: 45480

operands.  The lists are currently kept in MachineRegisterInfo, but it does
not yet provide an iterator interface to them.

llvm-svn: 45477

Fix a bug in my previous patch: refer to the impl not the pure virtual version.  It's unclear why gcc would ever compile this...

llvm-svn: 45476